Domain Age Checker by Semantic Pen
Chrome extension by David Malla · Productivity · Developer
- Established publisher
A Chrome extension in Productivity · Developer with 1 000 users, a small but real audience. Audience over the last 30 days: unchanged.
No site access is declared in the manifest, so it cannot read the pages you open on its own.
What the developer says, and 2 screenshots
Loading from the Chrome Web Store. Open the listing if it does not appear.
- Users
- 1 000
- Users, last 30 days
- Unchanged (the store rounds this count to 1 000, so it moves only between steps)
- Rating, last 30 days
- Steady over 30 days
- Version
- 2.4
- Updated in the store
- 2026-10-13
- Published
- 2024-10-04
- Manifest
- V3
- Browser access
- 2 permissions
How it has moved
- 2026-10-042k
- 2026-10-081k
- 2026-10-311k
- 2026-10-04reviews27
- 2026-10-08reviews27
- 2026-10-31reviews27
- 2026-09-012k
- 2026-09-281k
- 2026-10-042k
- 2026-10-081k
- 2026-10-311k
- 2026-09-01reviews27
- 2026-09-28reviews27
- 2026-10-04reviews27
- 2026-10-08reviews27
- 2026-10-31reviews27
A dot marks a day the store showed a different number. Between them the line carries the last one forward: we read every listing up to 2 times a day and record a point only when something moves. History beyond ninety days is in the app.
What it can reach
No site access is declared in the manifest, so it cannot read the pages you open on its own.
Version history
- Version 2.4 · Changed where it works (changed: pages it runs its code on)
What changed recently
- Package size changed
- Changed where it works (changed: pages it runs its code on)
- Released version 2.4 (was 2.3)
The publisher
David Malla publishes 10 listings we track, 14k users between them. Listed website: semanticpen.com.
-
Domain Authority Checker 10k users
-
Domain Authority Checker - Google SERP 1k users
-
Domain Age Checker Google SERP - Semantic Pen 835 users
Show 5 more from this publisher
Like this one
Listings the catalog judges closest in what they say they do.
-
Instant Website Age Checker — Domain Age & History for SEOs 46 users
-
Domain Age Inspector 12 users
-
Domain Age Checker 8 users
-
Domain Age Checker 1k users
-
Domain Age Checker | Website Age Checker 302 users
The top 5 only. The full comparison, with why each one is close, is on the alternatives page; ranking a whole neighbourhood by your own criteria is in the app.
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Connect it to Ext Ops Panel and see installs, uninstalls and uninstall reasons as events arrive, not as a weekly summary.
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The badge shows the audience and rating from our last pass over the store and links back to this page.
[](https://extops.dev/extensions/gmfpkimhlpfknllbhfbcjbghmkhhgdbc)<a href="https://extops.dev/extensions/gmfpkimhlpfknllbhfbcjbghmkhhgdbc"><img src="https://extops.dev/extensions/gmfpkimhlpfknllbhfbcjbghmkhhgdbc/badge.svg" alt="Users and rating on Ext Ops Panel" height="20"></a>Figures come from our own regular passes over the public Chrome Web Store listing, last read on . The store last changed these figures on 2026-10-08. We publish no contact details for extension developers.